Case studies, other projects and how I work

Product design for a cross-border payments app, a marketplace and its business tools, a social gaming platform and a music library. Each case study covers the problem, the research, the decisions and what changed.

Case studies

3 products, each with the problem, the research, the decisions and the measured result. Every card opens its case study.

3 years turning a cross-border transfer app into a product system

Afriex is a money transfer app for Africans at home and abroad. For most of my time there I was the only product designer, responsible for the consumer app on iOS and Android and for the business and operations tools behind it.

Product designeriOS, Android and web

  • Consumer app redesign
  • Onboarding and KYC verification
  • Sending money and receipts
  • Wallet, cards, scheduled transfers, credit builder
  • Afriex Business platform
  • Operations dashboard and support site
  • Design system for iOS and Android
  • Cross-border user research to align stakeholders across multiple markets
Afriex wallet, 2025
The wallet, 2025

98.9%

Transaction success

≈15% → ≈30%

KYC completion

98%

Design system adoption

3.6 → 4.7

App Store rating

Designing across Konga’s shopping experience and business tools

Konga is a Nigerian marketplace where many merchants sell into one basket. Over 4 years I improved the parts shoppers already used and built tools that did not exist yet for the people running the business, alongside other designers, product managers, engineers, merchandisers and operations staff.

Product designerWeb, mobile web, iOS, Android, POS

  • Product page, listings and checkout
  • KongaNow same-day delivery
  • Konga Search Service, internal search merchandising platform
  • Inventory management system, built from nothing
  • Web app audit and session analytics
  • Shopper surveys and internal beta rounds
Inventory dashboard with total value, sales trend, distribution and alerts
Inventory dashboard

24%

Revenue increase attributed to KongaNow

$75K+

Annual third-party costs avoided with KSS

0 → 1

Inventory management system

Making African music easier to explore

Josplay was building the African Music Library, a knowledge base of African music. My part was the user research and information architecture: who comes to the library, what it holds, and the paths people take through it. Ibkay designed the web UI from that research, and I supported some of the responsive mobile UI.

User research and information architectureWeb and responsive mobile

  • Review of 5 comparable libraries
  • Mental models and user stories
  • Entity model and sitemap
  • Task flows and low-fidelity screens
  • Usability testing with 7 participants
The task flow on the FigJam board for the scenario use the AML search feature
Task flow, use the AML search feature

What held

Browse by artist, genre and instrument: each has its own pages on the live library

What changed

The live library has no paywall. AML runs as a nonprofit, funded mainly by donations.

Other work

Game360 is a social gaming platform I designed from research to beta launch; its link opens the app on Google Play. Below it, the smaller pieces from Konga and Afriex, each described in its case study.

Other work

Game360

A social gaming platform: multiplayer games, tournaments and live matches with voice chat. I designed the mobile app and the operations admin, from research and MVP scope to the design system and beta launch.

Lead product designer, sole designerOctober 2025 to March 2026Visit Game360

Home: tournaments, games, challenges and live streams
A live match: the host's stream, gifts and chat
Admin: managing tournaments alongside the games catalog, rules and scoring
A live tournament's details and prize split

Also designed

  • Konga

    Seller HQ

    The back office for merchants: I designed its responsive mobile view and the redesigned onboarding. Ibkay designed the web dashboard.

  • Konga

    KongaPay merchant web

    Dashboard, wallet, bills, transaction history, payment requests, invoices, disputes, POS, sub-accounts, bulk transfer, approvals and settings.

  • Konga

    Affiliate portal

    Audit of the old portal, information architecture, wireframes and the main dashboard for web and responsive mobile.

  • Konga

    KongaPay website redesign

    An overview of KongaPay with dedicated pages for its business and personal offerings.

  • Konga

    POS terminal

    Requesting a terminal, activation, wallet, collections by card, transfer, QR or cash, receipts and the end-of-day report.

  • Konga, explorations

    Gift cards, loyalty scheme, Konga Logistics mobile client

    Directions mapped against the business requirements: the gift card purchase flow, 5 reward directions mapped against the PRD, and an MVP for booking a delivery.

  • Afriex

    Afriex Business

    Structured sign-up for compliance, larger transfers with a record of each step, roles and permissions, API keys and webhooks.

  • Afriex

    Operations dashboard and support site

    Restructured transaction data, filters and statuses for operations and support; a help centre that reduced general inquiries.

How I work

How I approach product design across products and teams: the evidence I work from, how decisions get made and recorded, and what shipping properly means.

Case studies, other projects and how I work

Product design for a cross-border payments app, a marketplace and its business tools, a social gaming platform and a music library. Each case study covers the problem, the research, the decisions and what changed.

Case studies

3 products, each with the problem, the research, the decisions and the measured result. Every card opens its case study.

3 years turning a cross-border transfer app into a product system

Afriex is a money transfer app for Africans at home and abroad. For most of my time there I was the only product designer, responsible for the consumer app on iOS and Android and for the business and operations tools behind it.

Product designeriOS, Android and web

  • Consumer app redesign
  • Onboarding and KYC verification
  • Sending money and receipts
  • Wallet, cards, scheduled transfers, credit builder
  • Afriex Business platform
  • Operations dashboard and support site
  • Design system for iOS and Android
  • Cross-border user research to align stakeholders across multiple markets
Afriex wallet, 2025
The wallet, 2025

98.9%

Transaction success

≈15% → ≈30%

KYC completion

98%

Design system adoption

3.6 → 4.7

App Store rating

Designing across Konga’s shopping experience and business tools

Konga is a Nigerian marketplace where many merchants sell into one basket. Over 4 years I improved the parts shoppers already used and built tools that did not exist yet for the people running the business, alongside other designers, product managers, engineers, merchandisers and operations staff.

Product designerWeb, mobile web, iOS, Android, POS

  • Product page, listings and checkout
  • KongaNow same-day delivery
  • Konga Search Service, internal search merchandising platform
  • Inventory management system, built from nothing
  • Web app audit and session analytics
  • Shopper surveys and internal beta rounds
Inventory dashboard with total value, sales trend, distribution and alerts
Inventory dashboard

24%

Revenue increase attributed to KongaNow

$75K+

Annual third-party costs avoided with KSS

0 → 1

Inventory management system

Making African music easier to explore

Josplay was building the African Music Library, a knowledge base of African music. My part was the user research and information architecture: who comes to the library, what it holds, and the paths people take through it. Ibkay designed the web UI from that research, and I supported some of the responsive mobile UI.

User research and information architectureWeb and responsive mobile

  • Review of 5 comparable libraries
  • Mental models and user stories
  • Entity model and sitemap
  • Task flows and low-fidelity screens
  • Usability testing with 7 participants
The task flow on the FigJam board for the scenario use the AML search feature
Task flow, use the AML search feature

What held

Browse by artist, genre and instrument: each has its own pages on the live library

What changed

The live library has no paywall. AML runs as a nonprofit, funded mainly by donations.

Other work

Game360 is a social gaming platform I designed from research to beta launch; its link opens the app on Google Play. Below it, the smaller pieces from Konga and Afriex, each described in its case study.

Other work

Game360

A social gaming platform: multiplayer games, tournaments and live matches with voice chat. I designed the mobile app and the operations admin, from research and MVP scope to the design system and beta launch.

Lead product designer, sole designerOctober 2025 to March 2026Visit Game360

Home: tournaments, games, challenges and live streams
A live match: the host's stream, gifts and chat
Admin: managing tournaments alongside the games catalog, rules and scoring
A live tournament's details and prize split

Also designed

  • Konga

    Seller HQ

    The back office for merchants: I designed its responsive mobile view and the redesigned onboarding. Ibkay designed the web dashboard.

  • Konga

    KongaPay merchant web

    Dashboard, wallet, bills, transaction history, payment requests, invoices, disputes, POS, sub-accounts, bulk transfer, approvals and settings.

  • Konga

    Affiliate portal

    Audit of the old portal, information architecture, wireframes and the main dashboard for web and responsive mobile.

  • Konga

    KongaPay website redesign

    An overview of KongaPay with dedicated pages for its business and personal offerings.

  • Konga

    POS terminal

    Requesting a terminal, activation, wallet, collections by card, transfer, QR or cash, receipts and the end-of-day report.

  • Konga, explorations

    Gift cards, loyalty scheme, Konga Logistics mobile client

    Directions mapped against the business requirements: the gift card purchase flow, 5 reward directions mapped against the PRD, and an MVP for booking a delivery.

  • Afriex

    Afriex Business

    Structured sign-up for compliance, larger transfers with a record of each step, roles and permissions, API keys and webhooks.

  • Afriex

    Operations dashboard and support site

    Restructured transaction data, filters and statuses for operations and support; a help centre that reduced general inquiries.

How I work

How I approach product design across products and teams: the evidence I work from, how decisions get made and recorded, and what shipping properly means.

Case studies, other projects and how I work

Product design for a cross-border payments app, a marketplace and its business tools, a social gaming platform and a music library. Each case study covers the problem, the research, the decisions and what changed.

Case studies

3 products, each with the problem, the research, the decisions and the measured result. Every card opens its case study.

3 years turning a cross-border transfer app into a product system

Afriex is a money transfer app for Africans at home and abroad. For most of my time there I was the only product designer, responsible for the consumer app on iOS and Android and for the business and operations tools behind it.

Product designeriOS, Android and web

  • Consumer app redesign
  • Onboarding and KYC verification
  • Sending money and receipts
  • Wallet, cards, scheduled transfers, credit builder
  • Afriex Business platform
  • Operations dashboard and support site
  • Design system for iOS and Android
  • Cross-border user research to align stakeholders across multiple markets
Afriex wallet, 2025
The wallet, 2025

98.9%

Transaction success

≈15% → ≈30%

KYC completion

98%

Design system adoption

3.6 → 4.7

App Store rating

Designing across Konga’s shopping experience and business tools

Konga is a Nigerian marketplace where many merchants sell into one basket. Over 4 years I improved the parts shoppers already used and built tools that did not exist yet for the people running the business, alongside other designers, product managers, engineers, merchandisers and operations staff.

Product designerWeb, mobile web, iOS, Android, POS

  • Product page, listings and checkout
  • KongaNow same-day delivery
  • Konga Search Service, internal search merchandising platform
  • Inventory management system, built from nothing
  • Web app audit and session analytics
  • Shopper surveys and internal beta rounds
Inventory dashboard with total value, sales trend, distribution and alerts
Inventory dashboard

24%

Revenue increase attributed to KongaNow

$75K+

Annual third-party costs avoided with KSS

0 → 1

Inventory management system

Making African music easier to explore

Josplay was building the African Music Library, a knowledge base of African music. My part was the user research and information architecture: who comes to the library, what it holds, and the paths people take through it. Ibkay designed the web UI from that research, and I supported some of the responsive mobile UI.

User research and information architectureWeb and responsive mobile

  • Review of 5 comparable libraries
  • Mental models and user stories
  • Entity model and sitemap
  • Task flows and low-fidelity screens
  • Usability testing with 7 participants
The task flow on the FigJam board for the scenario use the AML search feature
Task flow, use the AML search feature

What held

Browse by artist, genre and instrument: each has its own pages on the live library

What changed

The live library has no paywall. AML runs as a nonprofit, funded mainly by donations.

Other work

Game360 is a social gaming platform I designed from research to beta launch; its link opens the app on Google Play. Below it, the smaller pieces from Konga and Afriex, each described in its case study.

Other work

Game360

A social gaming platform: multiplayer games, tournaments and live matches with voice chat. I designed the mobile app and the operations admin, from research and MVP scope to the design system and beta launch.

Lead product designer, sole designerOctober 2025 to March 2026Visit Game360

Home: tournaments, games, challenges and live streams
A live match: the host's stream, gifts and chat
Admin: managing tournaments alongside the games catalog, rules and scoring
A live tournament's details and prize split

Also designed

  • Konga

    Seller HQ

    The back office for merchants: I designed its responsive mobile view and the redesigned onboarding. Ibkay designed the web dashboard.

  • Konga

    KongaPay merchant web

    Dashboard, wallet, bills, transaction history, payment requests, invoices, disputes, POS, sub-accounts, bulk transfer, approvals and settings.

  • Konga

    Affiliate portal

    Audit of the old portal, information architecture, wireframes and the main dashboard for web and responsive mobile.

  • Konga

    KongaPay website redesign

    An overview of KongaPay with dedicated pages for its business and personal offerings.

  • Konga

    POS terminal

    Requesting a terminal, activation, wallet, collections by card, transfer, QR or cash, receipts and the end-of-day report.

  • Konga, explorations

    Gift cards, loyalty scheme, Konga Logistics mobile client

    Directions mapped against the business requirements: the gift card purchase flow, 5 reward directions mapped against the PRD, and an MVP for booking a delivery.

  • Afriex

    Afriex Business

    Structured sign-up for compliance, larger transfers with a record of each step, roles and permissions, API keys and webhooks.

  • Afriex

    Operations dashboard and support site

    Restructured transaction data, filters and statuses for operations and support; a help centre that reduced general inquiries.

How I work

How I approach product design across products and teams: the evidence I work from, how decisions get made and recorded, and what shipping properly means.

Let’s talk about what you’re building.

I’m open to design roles and thoughtful collaborations. Tell me about the problem you’re working on.

onuohamaria@gmail.comLinkedIn

Chinonye Onuoha · Product Designer© 2026 Chinonye Onuoha

Let’s talk about what you’re building.

I’m open to design roles and thoughtful collaborations. Tell me about the problem you’re working on.

onuohamaria@gmail.comLinkedIn

Chinonye Onuoha · Product Designer© 2026 Chinonye Onuoha

Let’s talk about what you’re building.

I’m open to design roles and thoughtful collaborations. Tell me about the problem you’re working on.

onuohamaria@gmail.comLinkedIn

Chinonye Onuoha · Product Designer© 2026 Chinonye Onuoha